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st: How to perform a non parametric manova


From   amatoallah ouchen <at.ouchen@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: How to perform a non parametric manova
Date   Thu, 27 May 2010 10:44:17 +0000

Dear Michael,
Thanks a lot for your concern, the reasons are  as you have already
said it as well as Nick, specially the fear of violating manova
assumptions of normality and  thus the danger of getting biased
results.





2010/5/26 Michael N. Mitchell <Michael.Norman.Mitchell@gmail.com>:
> Dear Ama
>
>  There have been some extremely useful answers to your question so far, and
> it might be completely settled. I don't know if anyone asked about the
> motivation for doing the non-parametric anova. I could see it being related
> to at least two different reasons...
>
>  1) The outcome variable is not measured on an interval scale (is ordinal).
>
>  2) There is question about meeting assumptions of the manova model, in
> terms of normality, homogeneity of variance, etc... especially if combined
> with small sample sizes.
>
>  Perhaps letting us know about the underlying motivations for the selection
> of this model could help inform further useful information.
>
> Best regards,
>
> Michael N. Mitchell
> Data Management Using Stata      - http://www.stata.com/bookstore/dmus.html
> A Visual Guide to Stata Graphics - http://www.stata.com/bookstore/vgsg.html
> Stata tidbit of the week         - http://www.MichaelNormanMitchell.com
>
>
>
> On 2010-05-26 4.38 AM, amatoallah ouchen wrote:
>>
>> Good day Stata-listers,
>> Does anyone have an idea about how to perform a non parametric manova?
>> an equivalent of the kruskal wallis test for anova?
>>
>> Any help would be highly appreciated.
>>
>> Ama
>> I
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